Comparison

LIBRO vs PKU Bite

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LIBRO

This AI-powered health assistant helps you track diet, exercise, and lifestyle goals with features like voice logging and a barcode scanner. It offers personalized suggestions and meal planning tools. Access is currently by invitation only from an accredited nutrition professional.

Highlights
  • AI-powered health tracking
  • Voice logging
  • Barcode scanner
  • Personalized suggestions
  • Diet and activity logging
  • Meal planning
Features
Read full description

LIBRO is an AI health assistant designed to track your diet, exercise and lifestyle goals. ** LIBRO is currently available by invitation only ** You must have been invited by an accredited nutrition professional to use this app. Logging has never been this easy! A personalised voice assistant and barcode scanner help you to log foods and a unique memory system automatically suggests what you have previously eaten based on the meal occasion. LIBRO was created by Nutritics, the world's leading provider of professional nutrition software.With key features such as diet and activity logging, recipe and cost analysis, meal planning and a label maker, Nutritics is constantly defining new ways to empower the world to make better food choices. We love feedback! Just drop us a line at support@nutritics.com and let us know how you get on.

About

PKU Bite

This app helps individuals with phenylketonuria (PKU) manage their low-phenylalanine diet. It provides information on over 1100 foods, categorizing them by protein content and offering recipes and preparation tips. An integrated calculator assists in tracking daily protein intake.

Highlights
  • Food database with over 1100 items
  • Low-protein, high-protein, and exchangeable food categorization
  • Traffic light color-coding system
  • Food preparation and recipe suggestions
  • In-built protein exchange calculator
  • Search by food name or category
Features
Read full description

PKU Bite is an app for people with phenylketonuria (PKU) or their families or carers. A low phenylalanine diet is the main treatment for PKU. Phenylalanine is found in protein, so protein containing foods need to be restricted. It cannot be removed from the diet completely as it is needed for growth and repair in the body. In PKU protein is given in measured amounts each day, known as exchanges. Knowing which foods contain protein and in what quantity is difficult to remember. Reading and interpreting food labels on manufactured foods can be particularly confusing. PKU Bite contains information on over 1100 foods. It describes which foods are low in protein and so can be eaten without measuring (‘exchange free foods’), foods which are high in protein so best avoided, and foods which need to be calculated as part of the daily protein/phenylalanine exchange allowance. Foods are colour coded using the traffic light system used by the patient support group, NSPKU. Each food has information on: what the food is, food preparation, storage, availability, menu ideas and recipes. Foods can be searched for by name or by food category. An inbuilt calculator enables the user to enter protein values from food labels and it will calculate the number of protein exchanges per 100g or per portion of the food. ***Disclaimer*** This application does not replace individual dietary advice, please consult your doctor or healthcare professional if you need diet or treatment information. This application is based on guidelines within the United Kingdom, other countries and territories may have different guidelines, please check with your doctor or healthcare professional before use.

Screenshots

LIBRO4 screens
PKU Bite4 screens

Verdict

The call

The clearest difference is update cadence: PKU Bite at every 4 weeks against LIBRO's every 7 months. On price, review sentiment, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

LIBRO ships an update every 7 months, PKU Bite every 4 weeks. The most recent releases landed on October 11, 2026 and September 28, 2026 respectively.

Scorecard1 real difference · 9 level
LIBRO versus PKU Bite: the parameters behind the verdict, then further details
ParameterLIBROPKU Bite
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews4.0% of reviews — better0.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.1
Further details — not scored
Size10 MB45 MB
Age rating4+17+
DeveloperNutritics LimitedImobisoft Ltd

Customer experience

LIBRO

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews25 reviews
Positive4.0%
Neutral0.0%
Negative96.0%

PKU Bite

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

LIBRO

No in-app purchases

None

PKU Bite

No in-app purchases

Questions

Is LIBRO free?
LIBRO is free to download, with no in-app purchases.
Is PKU Bite free?
PKU Bite is free to download, with no in-app purchases.
Do LIBRO or PKU Bite have ads?
Neither LIBRO nor PKU Bite shows ads.
Which is updated more often, LIBRO or PKU Bite?
LIBRO ships an update every 7 months, and PKU Bite every 4 weeks. Most recently, LIBRO was updated on October 11, 2026 and PKU Bite on September 28, 2026.

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